Strawberry Plant Named &#39;DrisStrawThirty&#39;

ABSTRACT

A new and distinct variety of strawberry plant named ‘DrisStrawThirty’ particularly characterized by high yield, dark red fruit color, and large fruit with medium sweetness is disclosed.

GENUS AND SPECIES

Fragaria×ananassa

VARIETY DENOMINATION

‘DrisStrawThirty’

BACKGROUND OF THE NEW PLANT

The present invention relates to a new and distinct strawberry variety designated TrisStrawThirty' and botanically known as Fragaria×ananassa. This new strawberry variety was discovered in Avitorejo, Spain in February 2007 and originated from a cross-between the proprietary female parent ‘DrisStrawTwenty’ (U.S. Plant patent application Ser. No. 13/317,146) and the proprietary male parent ‘197M167’ (unpatented). A single plant was selected for asexual propagation via tissue culture and vegetative cuttings in Palencia, Spain in 2007.

‘DrisStrawThirty’ underwent further testing in Spain for five years (2007-2011). The present invention has been found to retain its distinctive characteristics through successive asexual propagations via stolons and tissue culture.

Plant Breeder's Rights for this variety have not been applied for ‘DrisStrawThirty’ has not been made publicly available or sold more than one year prior to the filing date of this application.

SUMMARY OF THE INVENTION

The following are the most outstanding and distinguishing characteristics of this new cultivar when grown under normal horticultural practices in Avitorejo, Spain.

1. High yield;

2. Dark red fruit color; and

3. Large fruit with medium sweetness.

DESCRIPTION OF THE PHOTOGRAPHS

The accompanying color photographs show typical specimens of the new variety at various stages of development. The colors shown are as true as can be reasonably obtained by conventional photographic procedures. The photographs were taken from six-month-old plants.

FIG. 1 shows overall plant habit including fruit at various stages of development.

FIG. 2 shows upper and lower surfaces of the leaves of the plant with three leaflets.

FIG. 3 shows both upper and lower surfaces of the flowers.

FIG. 4 shows the whole fruit.

FIG. 5 shows the fruit in longitudinal cross-section.

DESCRIPTION OF THE NEW VARIETY

The following detailed descriptions set forth the distinctive characteristics of ‘DrisStrawThirty’. The data which define these characteristics is based on observations taken in Avitorejo, Spain from 2010 to 2011. This description is in accordance with UPOV terminology. Color designations, color descriptions, and other phenotypical descriptions may deviate from the stated values and descriptions depending upon variation in environmental, seasonal, climatic, and cultural conditions. ‘DrisStrawThirty’ has not been observed under all possible environmental conditions. The botanical description of ‘DrisStrawThirty’ was taken from six-month-old plants. Color references are primarily to the R.H.S. Colour Chart of The Royal Horticultural Society of London (R.H.S.) (2007 edition). Descriptive terminology follows the Plant Identification Terminology, An Illustrated Glossary, 2^(nd) edition by James G. Harris and Melinda Woolf Harris, unless where otherwise defined.

DETAILED BOTANICAL DESCRIPTION OF THE PLANT

-   Classification:     -   -   Species.—Fragaria×ananassa.         -   Common name.—Strawberry.         -   Denomination.—‘DrisStrawThirty’. -   Parentage:     -   -   Female parent.—The proprietary variety ‘DrisStrawTwenty’             (U.S. Plant patent application Ser. No. 13/317,146).         -   Male parent.—The proprietary variety ‘197M167’ (unpatented). -   Plant:     -   -   Height.—40.1 cm.         -   Diameter.—46.9 cm.         -   Number of crowns/plant.—3.         -   Habit.—Upright.         -   Density of individual plant.—Medium.         -   Vigor (health and hardiness of plant).—Strong. -   Terminal leaflets:     -   -   Size.—Large. Length: 87.7 cm Width: 79.4 cm Length/width             ratio: 1.1.         -   Number of teeth/terminal leaflet.—19.         -   Shape of teeth.—Obtuse — serrate to crenate.         -   Color.—Upper surface: RHS N137C (Dark green) Lower surface:             RHS 191A (Medium greyed-green).         -   Shape in cross section: Slightly concave.         -   Blistering.—Weak.         -   Glossiness.—Medium.         -   Number of leaflets.—Three only.         -   Shape.—Orbicular.         -   Base shape.—Acute.         -   Apex descriptor.—Rounded.         -   Variegation.—Absent.         -   Margin.—Serrate.         -   Margin profile.—Revolute. -   Petiole:     -   -   Length.—30.7 cm.         -   Diameter.—4.02 mm.         -   Pubescence.—Absent or very sparse.         -   Pose of hairs.—Slightly upwards.         -   Color.—RHS 144C (Light yellow-green). -   Petiolule:     -   -   Length.—13.18 mm.         -   Diameter.—2.16 mm.         -   Bract frequency.—0.         -   Color.—RHS 144C (Light yellow-green). -   Stipule:     -   -   Length.—40.8 mm.         -   Width.—9.94 mm.         -   Pubescence.—Dense.         -   Stipule anthocyanin coloration.—Weak; RHS 143C (Medium             green). -   Stolon anthocyanin coloration: Medium; RHS 144B (Medium     yellow-green). -   Inflorescence:     -   -   Position relative to foliage.—Level.         -   Number of flowers.—Few.         -   Time of flowering (50% of plants at first flower).—Medium.         -   Flower size.—Large.         -   Diameter.—25.87 mm.         -   Petals.—Shape: Orbicular Apex: Rounded Base: Convex Margin:             Entire Spacing: Overlapping Length: 14.81 mm Width: 14.73 mm             Length/width ratio: 1.0 (As long as broad) Typical and             observed petal number per flower: 6 Color (both upper and             lower surfaces): RHS 155C (White).         -   Calyx.—Diameter: 40.42 mm Diameter relative to corolla:             Larger Inner calyx diameter relative to outer: Smaller             Insertion of calyx: Set above fruit — raised Pose of calyx             segments: Spreading — outwards Size of calyx in relation to             fruit: Same size Adherence of calyx: Weak.         -   Sepal.—Shape: Elliptical Apex: Truncate Margin: Entire             Length: 18.90 mm Width: 9.68 mm Typical and observed sepal             number per flower: 6.         -   Receptacle color.—RHS N144B (Light yellow-green).         -   Stamen.—Present. Anther color: RHS 153C (Light             yellow-green).         -   Pedicel.—Attitude of hairs: Slightly upwards. -   Fruiting truss:     -   -   Length.—Medium; 35.0 cm.         -   Diameter at base of truss.—3.46 mm.         -   Number of berries per fruiting truss.—3.         -   Attitude at first picking.—Semi-erect.         -   Color at base of truss.—RHS 143C (Medium green). -   Fruit:     -   -   Relative fruit size.—Large.         -   Length.—44.46 mm.         -   Width.—36.79 mm.         -   Length/width ratio.—1.2 (Longer than broad).         -   Fruit hollow length.—38.85 mm.         -   Fruit hollow width.—11.64 mm.         -   Fruit hollow length/width ratio.—3.3 (Longer than broad).         -   Fruit hollow center (cavity).—Medium.         -   Weight (per individual berry).—30.3 g.         -   Predominant fruit shape.—Conical.         -   Difference in shape between primary and secondary             fruits.—None or very slight (mid-season).         -   Evenness of fruit surface.—Even or very slightly uneven.         -   Fruit skin color.—RHS 45A (Dark red).         -   Evenness of fruit color.—Slightly uneven.         -   Fruit glossiness.—Strong.         -   Achenes.—Insertion of achenes: Level with surface Coloration             (sunward side of berry): RHS 173B (Medium greyed-orange)             Coloration (shaded side of berry): RHS 178B (Dark             greyed-red) Number per berry: 370 Weight (weight of achenes             divided by total # seed): 0.00042 g Width of band without             achenes: Broad.         -   Firmness of flesh (when fully ripe).—Soft.         -   Color of flesh (excluding core).—RHS 44A (Medium red).         -   Color of core.—RHS 34B (Medium orange-red).         -   Evenness of flesh color.—Slightly uneven.         -   Distribution of flesh color.—Marginal and central.         -   Sweetness.—Medium.         -   Acidity.—Medium.         -   Texture when tasted.—Fine.         -   Type of bearing.—Not everbearing — not remontant.         -   Grams of fruit/plant.—900.0 g.         -   Harvest interval.—Late December — late May.         -   Harvest maturity.—Mid-season. -   Disease, pest, and stress resistance:     -   -   Botrytis fruit rot.—Moderately susceptible.         -   Powdery mildew.—Moderately resistant.         -   Drought.—Moderately susceptible.         -   High temperatures.—Moderately susceptible.         -   Wind.—Moderately resistant. -   Comparison with parental and commercial varieties: When     ‘DrisStrawThirty’ is compared to the proprietary female parent     ‘DrisStrawTwenty’ (U.S. Plant patent application Ser. No.     13/317,146), ‘DrisStrawThirty’ has fruit with dark red skin color,     inflorescence positioned level with the foliage, three berries per     fruiting truss, and few flowers, whereas ‘DrisStrawTwenty’ has fruit     with medium red skin color, inflorescence positioned above the     foliage, one berry per fruiting truss, and many flowers.     Additionally, ‘DrisStrawThirty’ has a higher fruit yield and greater     individual berry weight than ‘DrisStrawTwenty’. When     ‘DrisStrawThirty’ is compared to the commercial variety     ‘DrisStrawEight’ (U.S. Plant Pat. No. 20,735), ‘DrisStrawThirty’ has     a strong vigor, achenes inserted level with the fruit surface, and     is not everbearing, whereas ‘DrisStrawEight’ has a medium vigor,     achenes inserted below the fruit surface, and is partially     everbearing. When ‘DrisStrawThirty’ is compared to the commercial     variety ‘DrisStrawSixteen’ (U.S. Plant Pat. No. 22,247),     ‘DrisStrawThirty’ has no difference or a very slight difference in     shape between primary and secondary fruits, a broad band without     achenes, and is moderately resistant to Powdery Mildew, whereas     ‘DrisStrawSixteen’ has a marked difference in shape between primary     and secondary fruits, a narrow band without achenes, and is     moderately susceptible to Powdery Mildew. 

We claim:
 1. A new and distinct variety of strawberry plant named ‘DrisStrawThirty’ as described and shown herein. 